The wave function (in SI unit) for a light wave is given as `Psi(x,t) = 10^(3) pi(3 xx 10^(6) x - 9 xx 10^(14)t)`. The frequency of the wave is equal
The wave function (in SI unit) for a light wave is given as `Psi(x,t) = 10^(3) pi(3 xx 10^(6) x - 9 xx 10^(14)t)`.
The frequency of the wave is equal to
A. `4.5 xx 10^(14) Hz`
B. `3.5 xx 10^(14) Hz`
C. `3.5 xx 10^(10) Hz`
D. `2.5 xx 10^(10) Hz`
5 views
1 Answers
Correct Answer - A
The wave function
`Psi(x,t) = 10^(3) sin pi(3 xx 10^(8)x - 9 xx 10^(4)t)`
Here,
Angular frequnency `omega = 9 xx 10^(14) pi`
`omega = 2piv`
`v = (omega)/(2pi) = (9 xx 10^(14)pi)/(2pi) = 4.5 xx 10^(14) Hz`
5 views
Answered